133401400 has 48 divisors (see below), whose sum is σ = 338360040. Its totient is φ = 48508800.

The previous prime is 133401353. The next prime is 133401409. The reversal of 133401400 is 4104331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133401409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28119 + ... + 32518.

Almost surely, 2^133401400 is an apocalyptic number.

133401400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133401400 is an abundant number, since it is smaller than the sum of its proper divisors (204958640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133401400 is a wasteful number, since it uses less digits than its factorization.

133401400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60664 (or 60655 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 133401400 is about 11549.9523808542. The cubic root of 133401400 is about 510.9598736879.

Adding to 133401400 its reverse (4104331), we get a palindrome (137505731).

The spelling of 133401400 in words is "one hundred thirty-three million, four hundred one thousand, four hundred".